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Danfoss GDA Installation Manual
Danfoss GDA Installation Manual

Danfoss GDA Installation Manual

Gas detection unit (gdu)
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Installation Guide
Gas Detection Unit (GDU)
GDA, GDC, GDHC, GDHF, GDH
Technician use only!
This unit must be installed by a suitably qualified technican who
will install this unit in accordance with these instructions and the
standards set down in their particular industry/country.
Suitably qualified operators of the unit should be aware of the
regulations and standards set down by their industry/country for
the operation of this unit.
These notes are only intended as a guide and the manufacturer
bears no responsibility for the installation or operation of this unit.
Failure to install and operate the unit in accordance with these
instructions and with industry guidelines may cause serious injury
including death and the manufacturer will not be held responsible
in this regard.
It is the installer's responsibility to adequately ensure that the
equipment is installed correctly and set up accordingly based on
the environment and the application in which the products are
being used.
Configurations and Wiring: All 3 types of Gas Detection Units (GDU)
Wire break
monitoring unit
Sensor
Buzzer and light
3-color-alarm
Basic GDU
2 configurations
1
© Danfoss | DCS (MWA) | 2018.04
Sensor
Buzzer and light
3-color-alarm
Premium GDU (Controller)
6 configurations
ENGLISH
Please observe that a Danfoss GDU works as a safety device
securing a reaction to a detected high gas concentration. If a
leakage occur, the GDU will provide alarm functions, but it will
not solve or take care of the leakage root cause itself.
Annual Test
To comply with the requirements of EN378 and the F GAS
regulation sensors must be tested annually. Danfoss GDU's are
provided with a test button that should be activated once a year
for testing of the alarm reactions.
Additional the sensors must be tested for functionality by either
Bump test or Calibration. Local regulations should always be
followed
After exposure to a substantial gas leak, sensor should be checked
and replaced if necessary.
Check local regulations on calibration or testing requirements.
Gas Detection Controller
Option: Modbus
Option: UPS
Sensor 2
5 meter
remote sensor
Controller solution
Max. 96 sensors
Display
UPS
Sensor
nsor
Heavy Duty GDU
1 configuration
DKRCI.PI.S00.F2.02 | 520H12487 | 1
Service tools
Service Tool
Handheld
Danfoss Pen
for Heavy
Duty display
communication

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Summary of Contents for Danfoss GDA

  • Page 1 GDA, GDC, GDHC, GDHF, GDH ENGLISH Technician use only! Please observe that a Danfoss GDU works as a safety device This unit must be installed by a suitably qualified technican who securing a reaction to a detected high gas concentration. If a...
  • Page 2 JP2 closed → AO 2-10 Volt Digital Service Tool Output Power Bus Comm. JP2* Local Bus_1 Local Bus_2 Ackn. Digital Button Input Field Analog Output Buzzer & Sensor Sensor 3-light alarm © Danfoss | DCS (MWA) | 2018.04 DKRCI.PI.S00.F2.02 | 520H12487 | 2...
  • Page 3 90 - 240 V AC V+ V- PE 12 V 0.8 Ah 12 V 0.8 Ah ACCU Danfoss Heavy Duty GDU (Atex, IEC approved) NPT ¾ in. Sensor PX2 +24 V DC/AC +24 V DC/AC BUS_A BUS_B 4 - 20 mA output...
  • Page 4 Check of BUS polarity: See section: Controller unit multiple GDU commissioning 3. Individual Addresses for the GDU's are given at commisioning, see Controller Unit multiple GDU's commisioning, according to a predetermined "BUS address plan" © Danfoss | DCS (MWA) | 2018.04 DKRCI.PI.S00.F2.02 | 520H12487 | 4...
  • Page 5 HC R290 / Propane 0-5000ppm 0-5000 ppm (0-30% LEL) -30°C to +60°C -22°F to 140°F 15-90% r.H. * Please observe lowest (highest) temperatur allowed for the specific GDU © Danfoss | DCS (MWA) | 2018.04 DKRCI.PI.S00.F2.02 | 520H12487 | 5...
  • Page 6 The LEDs attached to the modules show the two states in analogy (LED off -> relay de-energized) © Danfoss | DCS (MWA) | 2018.04 DKRCI.PI.S00.F2.02 | 520H12487 | 6...
  • Page 7: General Notes

    After completion of work, the GDU must be closed again. The cover has to be completely screwed in and secured with the locking screw against inadvertent loosening. © Danfoss | DCS (MWA) | 2018.04 DKRCI.PI.S00.F2.02 | 520H12487 | 7...
  • Page 8 Look for interruption in the This feature increases the user and operating security. field bus cable. New sensors are always delivered factory-calibrated by Danfoss. This is > 560 < 640 Cable is o.k. documented by the calibration label indicating date and calibration gas. A...

This manual is also suitable for:

GdhcGdcGdhfGdh